SI8283BC-IS

Isolators - Gate Drivers Overview

The SI8283BC-IS is a galvanically isolated gate driver designed for SiC and IGBT applications, featuring an integrated DC-DC converter. It operates within a supply voltage range of 2.5 V to 5.5 V and delivers a peak output current of 4 A. The device provides 5000 Vrms isolation with a common-mode transient immunity of 35 kV/µs. Key timing parameters include a maximum propagation delay of 50 ns, rise time of 5.5 ns, and fall time of 8.5 ns. It is housed in a 24-SOIC package and supports operation temperatures from -40°C to +125°C.

Isolators - Gate Drivers Feature Summary

• Integrates a high-voltage DC-DC converter for self-powered isolated operation
• Provides robust 5000 Vrms galvanic isolation barrier
• Optimized for driving wide-bandgap devices like Silicon Carbide (SiC)
• Features high common-mode transient immunity for noisy environments

Isolators - Gate Drivers Applications

• Silicon Carbide (SiC) MOSFET gate driving
• Insulated Gate Bipolar Transistor (IGBT) switching
• Automotive power electronics systems
• Industrial motor drives and inverters

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'BC' indicates the integrated DC-DC variant distinct from non-integrated models. Confirm AEC-Q100 automotive qualification status if required for the target application. Ensure the 24-SOIC package dimensions match the PCB footprint design. Check moisture sensitivity level (MSL 3) handling requirements during assembly.

Isolators - Gate Drivers Selection Notes

Select this component when an integrated isolated power source is preferred over external bootstrap or transformer solutions. The built-in DC-DC converter simplifies board layout by eliminating the need for isolated auxiliary supplies. Consider the 4 A peak current capability for driving larger SiC or IGBT modules. Verify that the 50 ns propagation delay meets the system's timing constraints.

Isolators - Gate Drivers Part Context

This part belongs to the Skyworks Si828x family of ISOdriver gate drivers. It complements other variants like the SI8281 and SI8283BD by offering integrated isolation power. The family targets high-efficiency power conversion applications requiring reliable galvanic separation between control logic and high-voltage power stages.

Isolators - Gate Drivers Replacement Considerations

The SI8283BD-IS is listed as a similar alternative but lacks the integrated DC-DC converter, requiring external isolated power. Direct substitution requires redesigning the isolated power supply section of the circuit.